Randall Stephenson

The connected car will be as common as smartphones, AT&T Chairman and CEO Randall Stephenson told CNBC on Monday, following the company's deal to take over as the high-speed wireless provider for GM vehicles. "General Motors has probably been the most aggressive thinking about the connected car and where the connected car goes," Stephenson said in a "Squawk Box" ... GM's OnStar — best known for connecting drivers to live operators who provide directions or call emergency help after an accident — will start using AT&T instead of Verizon in its 2015 models